Discharge-trough for smelting-fu rnaces



(No Model.)

A. J. SOHUMACHER. DISCHARGE TROUGH FOR SMBLTING FURNACES. N0. 470,511.

Patented Mar. 8, 1892.

INVENTOH:

ATTORNEYS Units STATES A ADAM J. SOHUMACHER, OF BUTTE CITY, MONTANA.

DISCHARGE-TROUGH FOR SMELTING-FURNACES.

SPECIFICATION forming part of Letters Patent No. 470,511, dated March 8, 1892.

Application filed March 4,1891- Serial No. 883,689. (No model.)

To aZZ whom it may COW/0677M- Be it known that I, ADAM J. SCHUMACHER, of Butte City, in the county of Silver Bow and State of Montana, have invented a new and Improved Discharge-'lrough for Smeltiug- Furnaces, of which the following is a full, clear, and exact description.

The invention relates to smelting-furnaces; and its object is to provide a new and improved discharge-trough which is simple and durable in construction, readily applied, serving for automatically discharging and separating the products of fusion from the furnace, and permitting of running the latter with greater continuity and less attention.

The invention consists of a pipe formed into a trough and connected with a watersupply to pass Water through the said pipe.

The invention also consists of certain parts and details and combinations of the same, as will be hereinafter fully described, and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement as applied. Fig. 2 is an enlarged plan view of the trough. Fig. 3 is a transverse section of the same on the line 00 w of Fig. 2. Fig. 4. is a like view of the same on the line 1 'y'of Fig. 2.

The improved trough A is. provided with a pipe B, connected at one end with a suitable source of water-supply, so that a continuous stream of water can be passed through the pipe to keep the trough cool. The pipe is formed or bent in such a manner as to form the bottom and sides of the trough, at the same time forming in the bottom an inletopening 0, into which the material passes from the furnace.

The opening 0 in the bottom leads to the main space D of the trough, the top of the latter being open, while the outer end wall of the trough is less in height than the sides, so as to form a discharge-outlet E on this outer end of the trough. The spaces between the several layers of the pipes are filled in with a suitable material such as fire-clay to prevent the products discharged from the fun nace from leaking between the several layers of pipe. One layer of the pipe extends under the front wall of the furnace F, as is plainly from thefurnace can pass down the inclined bottom G, pass into the opening 0, through the space D, and out through the opening E into the fore-hearth H, located below the trough A, as is plainly shown in Fig. 1..

In order to construct the trough A of a sin gle piece of pipe, the pipe B is first bent to form the part B, which is then bent inward and then forward and returned, as at B in order to form the bottom opening 0 and with the returned part B the bottom of the space D. The pipe is then bent outward and then parallel with the part B to form the other side B of the opening 0. The pipe is then bent upward and doubled onto the part B and passed over and returned over the part B as is plainly shown in Fig. 4, and then extended over the part B a suitable distance to the rear to pass transversely to the part B, which extends under the edge of the furnace F, as is plainly shown in Fig. 1. The pipe is then bent forward and backward to form the walls of the trough, the last forward layer B being doubled up and not extended across the front end, so as to leave the front end lower than the sides of the trough, as previouslymentioned. The doubled part of the pipe B extends transversely at the rear in the part B, to then run forwardly to be bent over, as at B and. B to finally connect at therear end with the discharge-pipe B. Thus water admitted into the pipe B can circulate through the several parts, to be finally discharged through the pipe 13, all the walls of the trough thus being kept in a cool condition.

The inlet-pipe is provided with a suitable stop-cock, as shown in Fig. 2, and serves to introduce detergents by means of a force-pump to clean the pipe of sediment whenever desired and without interrupting the work of the furnace.

The fore-hearth, previously mentioned, is provided with a tank 1, preferably mounted on wheels J, so as to conveniently move the fore-hearth about. The interior of the tank I is lined with a suitable refractory material, as at A pipe L, connected with asuitable source of water-supply, extends over the tank I and is then bent into a coil of pipe L.

The operation is as follows: When the trough A and the hearth H are in position, as

' shown in Fig. 1, and 'it is desired to discharge slack cover of the fore-hearth up to the cover on the trough A the runningstream of molten metal is iriclosed, except a small opening left for observation in a refractory material built around the running stream, thus preventing the coolingof the mass before separation.

Havingthus fully described my invention, I claim as new and desire to secure by Letters Patent- A discharge-trough for smelting-furnaces, made of a continuous pipe bent so as to form the bottom, sides, and ends, the bottom having an inlet-opening, while one end is some- .what less in height than the sides, so as to form a discharge-opening, substantially as 5 shown and described.

ADAM J. SOHUMAGHER. Witnesses:

B0131. BEVERIDGE, T. SMITH. 

